Odpowiedź:
a) · = =4
b)3· = =2,25
c)3·==1
d)·3= = 1
e)7·= =1=1=1,8
f) 5/23 x 3 = 15/23
g) 11/17 x 3 = 33/17 = 1
h) 7 x 17/21 = 119/21 =5
i)5/34 x 17 = 5/2 = 2,5
j)25 x 7/10 = 5 x 7/2 = 35/2= 17,5
k)11/15 x 12 = 132/15 = 7 = 7=7,8
l) 30 x 15/16 = 15x 15/8 = 225/8= 28= 28,125
daj naj zajeło mi 15 min robienie
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Odpowiedź:
a) · = =4
b)3· = =2,25
c)3·==1
d)·3= = 1
e)7·= =1=1=1,8
f) 5/23 x 3 = 15/23
g) 11/17 x 3 = 33/17 = 1
h) 7 x 17/21 = 119/21 =5
i)5/34 x 17 = 5/2 = 2,5
j)25 x 7/10 = 5 x 7/2 = 35/2= 17,5
k)11/15 x 12 = 132/15 = 7 = 7=7,8
l) 30 x 15/16 = 15x 15/8 = 225/8= 28= 28,125
daj naj zajeło mi 15 min robienie